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Finding the Fourth Proportional to 3,478.66, 4,800.57 and 1,885.31

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Solution

The fourth proportional to 3,478.66, 4,800.57 and 1,885.31 is: 2,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.66 : 4,800.57 = 1,885.31 : x
  2. Step 2: Convert to fraction form
    3,478.66/4,800.57 = 1,885.31/x
  3. Step 3: Cross multiply
    3,478.66x = 4,800.57 × 1,885.31
  4. Step 4: Simplify right side
    3,478.66x = 9,050,562.63
  5. Step 5: Solve for x
    x = 9,050,562.63/3,478.66
  6. Step 6: Final answer
    x = 2,601.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.